Rayleigh, Essex
Rear extension planning drawings in Rayleigh
Measured survey, design options, planning drawings and the application, handled for you. We design, get the approvals for and build rear extensions in Rayleigh and the surrounding area, with one contract from the first survey to building control sign-off.
Rayleigh is covered from our Essex round, including SS6. Rear extension applications in Essex are householder applications, which councils aim to decide within about eight weeks.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in Rayleigh?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a rear extension in Rayleigh?
The planning route for a rear extension in Rayleigh is set by England's householder rules and your council.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Rayleigh like to extend?
Rayleigh mixes Victorian terraces with 1930s semis, so both side returns and full-width kitchen extensions suit houses here.
How a rear extension in Rayleigh comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Rear extension planning drawings near Rayleigh
Close by, we work in Hadleigh, about 2.3 miles away, and South Benfleet, about 3.0 miles away.
- Rear extension planning drawings in Hadleigh
- Rear extension planning drawings in South Benfleet
- Rear extension planning drawings in Wickford
- Rear extension planning drawings in Pitsea
- Rear extension planning drawings in Rochford
Other work in Rayleigh:
FAQ
Rear extension planning drawings questions in Rayleigh
Is the site visit in Rayleigh free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Do neighbours get consulted?
Yes for a full application: the council writes to them or puts up a site notice.
Do you handle building control in Rayleigh?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
What postcode areas do you cover around Rayleigh?
Including SS6, and the surrounding Essex area.
Do I need planning permission for a rear extension in Rayleigh?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.